globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.06.032
Scopus记录号: 2-s2.0-84904886885
论文题名:
Constraints on the late Quaternary glacial history of the Inylchek and Sary-Dzaz valleys from in situ cosmogenic 10Be and 26Al, eastern Kyrgyz Tian Shan
作者: Lifton N.; Beel C.; Hättestrand C.; Kassab C.; Rogozhina I.; Heermance R.; Oskin M.; Burbank D.; Blomdin R.; Gribenski N.; Caffee M.; Goehring B.M.; Heyman J.; Ivanov M.; Li Y.; Li Y.; Petrakov D.; Usubaliev R.; Codilean A.T.; Chen Y.; Harbor J.; Stroeven A.P.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 101
起始页码: 77
结束页码: 90
语种: 英语
英文关键词: Cosmogenic nuclides ; Glacial history ; Paleoglaciation ; Tian Shan
Scopus关键词: Aluminum ; Climate change ; Isotopes ; Landforms ; Aluminum ; Climate change ; Isotopes ; Landforms ; Remote sensing ; Cosmogenic nuclides ; Field investigation ; Glacial history ; Last Glacial Maximum ; Marine oxygen isotopes ; Paleoglaciation ; Regional climate changes ; Tian Shan ; Glacial geology ; Glacial geology ; climate change ; glaciation ; ice cover ; meltwater ; moraine ; paleoclimate ; proxy climate record ; Quaternary ; regional climate ; remote sensing ; beryllium isotope ; boulder ; chronology ; climate variation ; cosmogenic radionuclide ; field survey ; geomorphological mapping ; glacial history ; glacier dynamics ; in situ measurement ; China ; Inylchek Glacier ; Kyrgyzstan ; Tien Shan ; Ysyk-Kol
英文摘要: Paleoclimatic constraints from regions at the confluence of major climate systems are particularly important in understanding past climate change. Using geomorphic mapping based on remote sensing and field investigations, combined with in situ cosmogenic 10Be and 26Al dating of boulders associated with glacial landforms, we investigate the chronology of past glaciation in the Inylchek and Sary-Dzaz valleys in the eastern Kyrgyz Tian Shan, a tectonically active area with some of the highest peaks in the world outside of the Himalayas. Cosmogenic 10Be and 26Al exposure ages of boulders on moraines record up to five glacial advances including: Lateglacial age lateral moraine remnants and meltwater channels in the upper Inylchek Valley; Last Glacial Maximum (LGM, Marine Oxygen Isotope Stage [MIS] 2) moraines in the Sary-Dzaz Valley and in a terminal moraine complex at the west end of the Inylchek Valley, overriding older moraines; an MIS 4 or 5 moraine remnant above the Inylchek terminal moraine complex; and an older high moraine remnant down-valley from the confluence of the Inylchek and Sary-Dzaz valleys. The evidence for glacial extent in this study is consistent with a limited ice expansion hypothesis for Tian Shan glaciation. Published results from the western and central Kyrgyz Tian Shan do not show evidence for significant LGM glacier expansion, which in combination with the results presented here, indicate a spatial variation in glacier records along the Tian Shan. This may reflect either paleoclimatic gradients or the impact of local physiographic conditions on responses to regional climate change, or both. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60167
Appears in Collections:过去全球变化的重建

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作者单位: Department of Earth Atmospheric and Planetary Sciences, Purdue University, West Lafayette, United States; Department of Physics and Astronomy, Purdue Rare Isotope Measurement Laboratory (PRIME Lab), Purdue University, West Lafayette, United States; Department of Physical Geography and Quaternary Geology, Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; German Research Centre for Geosciences, Potsdam, Germany; Department of Geological Sciences, California State University, Northridge, United States; Department of Earth and Planetary Sciences, University of California, Davis, United States; Department of Earth Science, University of California, Santa Barbara, United States; Faculty of Geography, Lomonosov Moscow State University, Moscow, Russian Federation; Department of Geography, University of Tennessee, Knoxville, United States; Central Asian Institute of Applied Geosciences, Bishkek, Kyrgyzstan; School of Earth and Environmental Sciences, University of Wollongong, Wollongong, Australia; College of Urban and Environmental Sciences, Peking University, Beijing, China

Recommended Citation:
Lifton N.,Beel C.,Hättestrand C.,et al. Constraints on the late Quaternary glacial history of the Inylchek and Sary-Dzaz valleys from in situ cosmogenic 10Be and 26Al, eastern Kyrgyz Tian Shan[J]. Quaternary Science Reviews,2014-01-01,101
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